| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 28°F | 52°F | 39°F | 1.9" |
| February | 32°F | 55°F | 42°F | 2.0" |
| March | 43°F | 67°F | 53°F | 3.5" |
| April | 50°F | 74°F | 61°F | 5.1" |
| May | 58°F | 80°F | 68°F | 6.2" |
| June | 68°F | 89°F | 78°F | 4.2" |
| July | 71°F | 93°F | 81°F | 4.5" |
| August | 70°F | 93°F | 81°F | 3.7" |
| September | 62°F | 86°F | 73°F | 4.5" |
| October | 51°F | 75°F | 62°F | 4.1" |
| November | 40°F | 64°F | 51°F | 3.0" |
| December | 31°F | 52°F | 40°F | 2.2" |
| Index | Park Hill | Oklahoma | National |
| Air quality index | 36 | 55 | 42 |
| Pollution index | 454,845 | 1,271,533 | 2,726,193 |
| Measurement | Total |
| Days measured | 291 |
| Days with good air quality | 269 |
| Days with moderate air quality | 22 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Braggs, OK | 218 | 5 | 90.0% |
| Keys, OK | 885 | 36 | 28.0% |
| Tenkiller, OK | 399 | 36 | 28.0% |
| Woodall, OK | 1,024 | 36 | 28.0% |
| Peggs, OK | 1,250 | 36 | 28.0% |
| Park Hill, OK | 3,803 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Newport, MN | 3,802 | 46 | 8.0% |
| Rockfish, NC | 3,802 | 41 | 18.0% |
| Fairbury, NE | 3,802 | 31 | 38.0% |
| Quitman, GA | 3,804 | 35 | 30.0% |
| Hebron, IN | 3,804 | 37 | 26.0% |
| Park Hill, OK | 3,803 | 36 | 28.0% |